From 0320aa53143ea1bb908c90c599fa6bdd3fce2c46 Mon Sep 17 00:00:00 2001
From: gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Sun, 12 Oct 2014 09:29:12 +0000
Subject: git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@7387
 35acf78f-673a-0410-8e92-d51de3d6d3f4

---
 os/hal/ports/LPC/LPC214x/hal_lld.c | 116 +++++++++++++++++++++++++++++++++++++
 1 file changed, 116 insertions(+)
 create mode 100644 os/hal/ports/LPC/LPC214x/hal_lld.c

(limited to 'os/hal/ports/LPC/LPC214x/hal_lld.c')

diff --git a/os/hal/ports/LPC/LPC214x/hal_lld.c b/os/hal/ports/LPC/LPC214x/hal_lld.c
new file mode 100644
index 000000000..cb1aaf3cf
--- /dev/null
+++ b/os/hal/ports/LPC/LPC214x/hal_lld.c
@@ -0,0 +1,116 @@
+/*
+    ChibiOS - Copyright (C) 2006-2014 Giovanni Di Sirio
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+/**
+ * @file    LPC214x/hal_lld.c
+ * @brief   LPC214x HAL subsystem low level driver source.
+ *
+ * @addtogroup HAL
+ * @{
+ */
+
+#include "hal.h"
+
+/*===========================================================================*/
+/* Driver exported variables.                                                */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local variables and types.                                         */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local functions.                                                   */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver interrupt handlers.                                                */
+/*===========================================================================*/
+
+/*
+ * Non-vectored IRQs handler, the default action can be overridden by
+ * redefining the @p LPC214x_NON_VECTORED_IRQ_HOOK() hook macro.
+ */
+static CH_IRQ_HANDLER(irq_handler) {
+
+  CH_IRQ_PROLOGUE();
+
+  LPC214x_NON_VECTORED_IRQ_HOOK();
+
+  VICVectAddr = 0;
+  CH_IRQ_EPILOGUE();
+}
+
+/*===========================================================================*/
+/* Driver exported functions.                                                */
+/*===========================================================================*/
+
+/**
+ * @brief   Low level HAL driver initialization.
+ *
+ * @notapi
+ */
+void hal_lld_init(void) {
+
+  vic_init();
+  VICDefVectAddr = (IOREG32)irq_handler;
+
+}
+
+/**
+ * @brief   LPC214x clocks and PLL initialization.
+ * @note    All the involved constants come from the file @p board.h.
+ * @note    This function must be invoked only after the system reset.
+ *
+ * @special
+ */
+void lpc214x_clock_init(void) {
+
+  /*
+   * All peripherals clock disabled by default in order to save power.
+   */
+  PCONP = PCRTC | PCTIM0;
+
+  /*
+   * MAM setup.
+   */
+  MAMTIM = 0x3;                 /* 3 cycles for flash accesses. */
+  MAMCR  = 0x2;                 /* MAM fully enabled. */
+
+  /*
+   * PLL setup for Fosc=12MHz and CCLK=48MHz.
+   * P=2 M=3.
+   */
+  PLL *pll = PLL0Base;
+  pll->PLL_CFG  = 0x23;         /* P and M values. */
+  pll->PLL_CON  = 0x1;          /* Enables the PLL 0. */
+  pll->PLL_FEED = 0xAA;
+  pll->PLL_FEED = 0x55;
+  while (!(pll->PLL_STAT & 0x400))
+    ;                           /* Wait for PLL lock. */
+
+  pll->PLL_CON  = 0x3;          /* Connects the PLL. */
+  pll->PLL_FEED = 0xAA;
+  pll->PLL_FEED = 0x55;
+
+  /*
+   * VPB setup.
+   * PCLK = CCLK / 4.
+   */
+  VPBDIV = VPD_D4;
+}
+
+/** @} */
-- 
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